Usher's new album comes out on Friday, his Super Bowl Halftime Show is on Sunday, and yesterday he kept the ball rollling by announcing his Usher: Past Present Future tour. The 24-city trek kicks off August 20th in Washington, D.C. and makes stops throughout the country during September and October before wrapping up with two nights in Chicago on October 28-29th. The singer recently wrapped his residency in Las Vegas after 100 shows, and fans have been hoping that he would follow it with a tour. Ticket pre-sales have already begun, with the general on-sale set for Monday.